We were lucky enough to ride about 15 times on our recent visit. Overall it is excellent when everything works as it should (it closed down once while we were riding and the 'smells' didn't work a couple of times).
If you can it really is worth asking to sit 'Front row B' even if you have to wait a little longer.
Really try to avoid the back rows particulary in sections A and C they are pretty poor.
Paul.